Several years ago, there was a joke going around.
Guy to gal: Would you sleep with me for a dollar?
Gal to guy: No! (Or Hell, no! Or some variant.)
Guy to gal: Would you sleep with me for a million dollars?
Gal to guy: (Usually would say...) Yes.
Guy to gal: Now that we know what you are we just need to agree on a price.
It goes with the premise that everyone has a price. In keeping with that, there's a very addictive website that asks you questions and let's you name your price. Such as, How much it would take for you to go without the Internet for a year or to take a vow of celibacy for a year.
[If, for some reason, the above link doesn't work, google "howmutch". It should be howmutch.com but I'm having trouble checking the link.]